Drive and control for printing presses



June 1 6, `1931. c. A. RUPP DRIVE AND -CONTROL FOR PRINTING PRESSESFiled Feb. 26. 1929 8 Sheets-Sheet l Jlm 16, 1931. Q A Rupp DRIVE ANDCONTROL FOR PRINTING PRESSES Filed Feb. 26, 1929 8 Sheets-Sheet 2 June16, 1931. Q A, RUPP 1,810,404

DRIVE AND CONTROL FOR PRINTING PRESSES Filed Feb. 26. 1929 8Sheets-Sheet 3 June 16, 1931. Q A, RUPP 41,810,404

- DRIVE AND CONTROL FOR PRINTING PRESSES Filed Feb. 26, .1929 8Sheets-Sheet 4 Eril June 16, 1931., c. A. RUPP DRIVE AND CONTROL FoRPRINTING PRESSES s sheets-smet 5 Filed Feb. 26. 1929 .lime 16, 1931. c,A, RUPP 1,810,404

DRIVE AND CONTROL FOR PRINTING PRESSES Filed Feb. 2e. 192s asheets-smeet 6 June 16, 1931. c. A. RUPP DRIVE AND CONTROL FOR PRINTINGPRESSES Filed Feb. 26. 1929 8 Sheets-Sheet 7 June 16, 1931 c. A. RUPP1,810,404 K DRIVE AND CONTROL FOR PRINTING PRESSES Filed Feb. 2e, 1929 8sneet-sneet 8 i A 0j .96' 17 y rif-nv Y sheet delivery features. flVitli provenientsy it is notinece'ssary in ina/kingv Patented v `lune16, 1931 UNITE-Dif,STATES Parleur :Fri-cs CARL A. EUR?, GF LOS --ANGEZESCALIFORNIA, ASSIGNOB.- T0 OOMIJIEBCIALV IRON WORKS ,OF LOS ANGELES, OFLGS ANGELES, CAIFORNL, Il CORPORATIONKOFCALI- FQRNI'A.

Vnnivn nimooirriaor non Pninrrne rnnssns Application filed ebruary26,1929. Serial N'o. 3422,89el.

Myinventioii is a drive and control for printing presses. l f

My vpresent invention relates to a drive and control for printingpresses both for sheet delivery and rewinding into rolls after theprinting operation.

My invention is illustrated as applied to a quadruple press, tltiat isapress consisting of fourprinting units,tivo of these constituting theupper deckvan'd tivo the lower deck of the press; rhe press is designedwith i'evvindingmechanism for each of the decks. -t frequently happensin rewinding when botli'decks are in operation, that one ofthereivinding rolls Willheconie Wound to its full size before the other. Inthis case it is desir'- aele vto remove the fully Wound roll and tostart Winding another roll in its place.

` An object therefore-of my invention'is to accomplish this, by shuttingdown the 4deck which is inoperat'i-on or Winding, in other words toshutdoivn the deck' which has its roll fully Wound and to still leavetheother Y deck inoperation. My invention therefore Acoin-prises a Idualcontrol forthe. upper'and lower decks Aby which bothof these decks maybe operated at the saine tiine or either` one inav bel-stopped and theother one continue in operation. f l

My invention applies to improvements in operating dou-ble deck quadruplepresses having printing and rei-Winding and priiilt and uc iinchanges tocompletely shut doivnthe print* ing press land such changes Withinypiinprovenient-s may be inade in a ininimuin aniount of tiine. TheinventionY to loe claimed Ypertains f delivery Ythe sprocket chainconnection may be disconnected. i

l Another object of iny inventionV is in the simultaneous control of the*opening orletting in of the clutch and applying brakes to bring thepress tov` a quick stop and to effect' aquickrelease for startingof thepress.

fr still further object of niy invention is in connection with theclutch control having operatino` devices such as levers positioned atvopposite sides of the press and distributed l longitudinallv'thereof toactua-te long shafts on the opposite sidesfofthe press. In this,

connection a detail 'feature of iny improvef nient is in utilizinglongitudinal shafts which are given a longitudinal `inovenient hy theoperating ylevers in counter-distinction to a rotary inoveinent tooperate the inain clutch.

By this procedure there is no lost motion on` l account of a torque orthe like of the shaft.

press.

Again yanother object and feature ofniy invention is a centrelubricating device by ineens of Whichthe two clutch bearings can Vbelubricated from the outer .extreme end of the clutch or drive shaft. J

The above various features of in'y linvention, together Withcharacteristics vare yset forth kin the `following specification Landclaims, having reference t'o the drawings7 in Which:V Y Y Figure l is adiagraniinatic side elevation and'partialsection on the line lJ-l oiFio. t in the direction of the arrows, of a press with certain fea-turesof my invention illus` trated in connection thereivitlncertain partsbeing ioinitted for the sake of clearness of illustration. T heillustration Vshows iruinly` vthe gear connections and the slicingclutch control rods or shafts; l Y 4 Fig. 2 isa horizontal sectioncntheline 2 2 of Fig. l in the direction of the arroivsml illustratingmainly the Vmounting of the clutch control rods and levers onV oppositesides of the press; Y

Fig. 3 is a side elevation taken in the direction of the arrow 3 of Fig.4 of the stand having the first c rive and the clutches with thesprocket chain connection, the ily wheels and brakes;

Fig. 4 is an end elevation oi' the stand of Fig. 3 taken in thedirection of the arrow 4 and showing certain parts of th main y frame ofthe press;

arrows;

F ig. 5 is an end elevation of part of the stand of Fig. 3 taken in thedirection of the arrows 5 of Fig. 3, this being on an enlarged scalecompared with the other drawings;

Fig. 6 is an Vinside elevation of part of the main frame of the presstaken iii the direction of the arrow (S oi Fig. 4, showing the mountingsfor the central o'ears oi.E the press;

Fio. 7jis a detail vert .l sect-ion on the line 7 7 of Fig. in thedirection of the arrows, showing the mounting for shi ting theintermediate gears for the upper defk;

Fig. 8 isa horizontal section on the line S-8 of Fig. 7 in thedircciionof the arrows;

Fig. 9 is a horiysontal section on the line 9-9 of Fig. 4 in thedirection of the arrows, to illustrate the lubricating system atopposite ends of the clutches;

Fig. 10 is a detail horizontal section partly in elevation, showing theshaft in elevation,

taken on the line 10-10 of Fig. 9 in the direction of the arrows;

Fig. 11 is an end eleviition taken in the direction of the arrow 1l oiFig. 10:|

Fig. 12 is a transverse ser Aon on the line 12-12 of Fig. 10 in thedirection of the arrows;

Fig. 13 is a side elevation of one of the clutch control levers taken inthe direction of the arrow 13 oi: Fig. 14;

Fig. 14 is an end eleva 'on of' F ig. 13 taken in the direction oi thearrow 14;

Fig. 15 is an enlarged detail elevation taken in the direction of `thearrow 15 of Fig. 14, with parts broken away;

Fig. 16 is a vertical detail section on the line 16--16 of Fig. 15 inthe direction ot' the Fig. 17 is a detail horizontal section on the line17--1f.7 of Fig. 15 in `the direction of the arrows;

Fig. 18 is a partial elevation of the centra-1 gearing of Fig. 1,showing a. different manner of driving the upper deck.

Referring first to Figs. 1 and 2. the main frame of the press isdesignated by the numeral 11, in which the upper printing deck isdesignated generally by the numeral 12 and the lower printing deck bythe numeral 13. These decks have separate printingr units designated 14,15, 16 and 17. The printing units are more or less standard inconstruction, the gear connections however, being changed to be suitabletor my invention.' The main frame structure of the press has a centralframe designated 18 in Fig. 2, in

which the central drive gears and shafts are mounted in a main panel 18.

A stand designated generally by the numeral 19 is mounted on one side ofthe central frame 18, being illustrated in side elevation in Fig. 3andpartly in plan in Fig. This stand encloses the inain drive pulley 20which is mounted on the outside of a lower' main clutch 21, this clutchbeing mounted on the shafting designated at 22, journaled in the stand19 and in the main panel 18. (Note Figs. 4 and 9.) The particularconstruction employed is .not part o" my immediateinvention and is notset iorth in detail. T he features have to do mainly with theconnections and operation of the clutch.

.ai main fly wheel 23 is connected to the shaiit to rotate therewithwhen the clutch is engaged. A lower pinion 24.- is connected to thesha'lt 22 and is always in mesh with a. main drive gear which isjournaled on the panel 18. This gear is always in mesh with gears 26which dri e the lower deck ot' the press actuating the printing units 16and 17.

ne manner ot driving the upper deck is indicated in Fig. 1. The gears 27which are on movable axes are shown in mesh with the main gear 25..These gears are constantly in mesh with the two gears 27 of they upperprinting units 14 and 15 of the upper deck. Therefore by thisarrangement the upper and li'uver decks are driven through the medium olthe main` clutch 21, the shaft 22, the pinion and the main gear 25.

As an alternative drive for the upper decl-z, the gears `27 may beshifted out of mesh with the main gear in the manner to be descrihcdhereunder in detail and shifted into driving connection with aseconilary driving gear 28 mounted on a fixed axis and support ed in thepanel 1S. Such shifted position is indicated in Fig. 18. The drive forthe gear 28 is by means of an upper pinion 21) on a shaft 3() which isjournalcd in the panel 1S and in the stand 19 (note Fig. f1). There is aspreader 31 mounted between the shafts 22 and 30. T his spreadercarriesl a sprocket tightening idler arm 32 having an idler sprocket 38thereon which engages the sprocket chain 34, this chain taking over alower sprocket 35 connected to one'elenient oi the clutch 21 and suchelement being always driven by the pulley 20 and another sprocket 36connected to an element of the upper clutch 37. This upper clutch 37when one element is driven through the sprocket 36. is designed toconnect the shaft 30 in such drive. The shaft 30 carries a Hy wheel 38.

By this construction when the gears 27 are shifted to their upperposition in mesh with the gear 28, the drive, to the lower deck remainsthrough the shaft- 22, the pinion 24, the gear 25 and gears 26, but thedrive to the upper deck is through the sprocket S5, the upper clutch 37,the shai't 30, upper pinion 29,gear 28 and Y.gears 27, thereby drivingthe upper. units. This therefore. drives both decks frein the maindrive. If it' :is desired to stop the upper deck7 theupper `clutrh 37delivery and forsheet delivery operations. it is desirable ,toslackenthe sprocket idler may be thrown out `and the sprocket chainWillcontinueI rotating the clutch element connected to the sprocket gear3G, but tne shaft will remain atrest. Or alternatively the lower clutch21 may be disconnected from the lower shaft 22,.thereby1stopping thepinion 24 and the; main gear 25, bringing the lower deck to rest and tneupper deck being driven 'through lthe sprocket chain and theupper clutch37 connected to drive. the upper shaft '30. These lalternative drivesare-the type used forvprinting and rewinding. The first lowered positionis for print-ing andsheet '33 and disconnect the sprocket chain `fromthe sprocket Wheels and 36, allowing such chain. `to rest on thespreader 31 as shown by y `rIhe manner of shifting the gears 27 is[substantially as follows,V` having reference particularly-to Figs. i6,7 and-8z The upper part of the central frame 18 is provided with slots39. Connected on opposite sides of these slots 39, there are a pair ofadjustable-segmental rings 40. These have a thru-bolt 40connectionyallowing accurate adjustment. The studs 41 carrying theygearsv 27y which are rotatably mounted Vhave suitable bushings 42 (noteFig. 7) and have Aa central hub portion 43 fitting' freely in the slots39,'and on the inner side there is a vcircular head44 which engages theframe on surroundingportions ofr the slot 39 and fits in the innersurface of the segmental rings 40. On the outside there is a sleeve45-on the stud 41 having a circular Vshoulder:portion 46 `Which'litsagainst the outsideof the rame on vsurrounding portion 'of Vthe slots 39and lin the outer Vsegmental ring 40. This sleeve maybe jammed tight bymeans of a nut 47 on the'screW threaded -end 48 of `thestud 41. v

y In order to disengage the teeth of the gears 27 from they teeth of thegear 25 or r28, it is necessary to be able to slide the gears .27'.mounted longitudinallyon the stud 41 which is accomplished by slidingthe pin 49 in an angular feathervvay 49, the pin being connectedto `acollar 50. In the normal rotation of the gears thepin is held in thecirfitv in a substantially vertical opening 53 in the top of the frame(-see' Fig57). "screws are held in adjusted position jby collars 54v and55, there being handwheelsi56 on `the top of each screw and these screwspass through the'slot 57 in the frame structure surroundoffer aposit-ive stop limit When the. circular heads ofthe stud 41 and thecircular shoulder portion 46 of the clamp.- l

ing sleeve 45 are shifted through the medium of the shifting screws 51.rIhe heads 54 and shoulders 46 seat themselves against the inner surfaceof the segmental rings 40. When the-studs 41 are so shifted then thegears 25 Ymay be slid into. mesh yWith either the gear 25 or the gear28, the circular heads 44 forming positive `'stops and thereforeaccurately centering the studs 41.

The immediate mechanism for shifting the clutches and operating thebralres acting on f the fly Wheels is substantially as follows,havinfrreference particularly to Figs. 3, 4 and 5. Such mechanism issubstantially the saine for the upper and lower clutches and thereforeonly one Will be described A clutch rockery shaftf() is journaled insuitable lugs on Vthe outer portion vof, the stand 19 and carries aclutch operating arm 61 on Vcach side of movaole elementwith .a slot 62therein in which there is a slidable bloclr63'engaging the clutch collar64 by Y meansV of a clutch pin 65,` thereby shifting the movable elementof the clutch. An arm 66 is secured tothe rocker shaft 60 by a setscren7 67 and has a linlr 68 connected thereto. In regard to theupperclutcln this link is shown as of a fixed length, Whereas in regardto the lower clutch it is indicated as ad-V justable, being. designated68.- rllhe links 68 and 68 are each pivotally connected to up` perandlower similar levers 69and 69Qwhich latter are each made of a pair .ofstraps 70, and midway of the length of each lever there is a pivotallyconnected long leven' suchlevers being designated 71 and 71.

'A brake rocker shaft 72'is journaled insuitable bosses on the stand 19and carries a brake actuatingrarin 73 in which the inner end ispivotally connected to the double lever 69. This actuating arm T3operates between the rtwo straps 70. which form the double lever 69. Theshaft 72 `has a brake carrying hub 73v whichY carries the brake lshoe74` connected theretoy byl apin and slot connection 7 5. A dependingbell crank end '76 forms part of the lever 7 3 and is adapt-cd `toContact. with an adjusting'screw mounted on y a box`r 7 8 'on the standv19. '-lhe lever VT3 is pivotally. connected to the straps of the lever69 asindicated 'by the pivot 7 9. y'rlhe manner of operation 4of theelutchesfis substantially as follows: i

In Fig. 5 the clutch shifting mechanism is indicated with the clutchthrown in and with thefbrake free. To open the clutch and apply thebrake, a downward movement of the link 71 causes a combined movement ofthe double lever 69r operating on the pivot 79 and the lever 73 being onthe pivot 72. This gives an upward movement of the brake shoe 74, thisbearing against the periphery of the fly wheel. Such action brings thelever 73 to rest so that the double lever 69 can move `as if on a fixedpivot 79. The further downward movement of the double lever 69 throughthe medium of either the link 68 or 68 gives a downward motion yto thearm 66 rocking the shaft G0 and shifting the arm 61 to move the clutchcollar 64 and hence the the same manner.

movable element of the clutch to open the clutch. As above mentionedboth' the main lower clutch and the upper clutch operate in Then it isdesired to throw in the clutch and release the brake, an opposite orupward movement is given to the link 71 which causes a. combined upwardmovement of the double lever 69 and the lever 73. The lever 73 pivots asabove mentioned on r72 until the bell crank end 76 contacts with theadjusting screw 77. Such action withdraws the brakeshoe from theperiphery of the fly wheel and in preventing furthermovement of thelever 73, causes the double link to move as if on the fixed pivot 79,thereby giving an upward thrust on the `links 68 and 68 and henceshifting the clutch collar from the open to the closed clutch posi tion.

The manual control of the lower or main clutch is substantially asfollows:

The hand lever located in front of the stand 19 is mounted on a rockshaft 81. This rock shaft has a segmental gear 82 projecting from oneside which meshes with a segmental gear 83 on the longitudinal shaft 84extending across the stand 19 from oneY side to the other. This shafthas an arm 85 which is pivotally connected to the lower end of the link71. (Note Figs. 3, 4 and The manner of operation of the upper clutch iseffected by a handlever 86 which is connected to a. rock shaft 87extending transversely of the stand 19. This rock shaft carries :isegmental gear 88 which meshes kwitha segmental gear 89 on a double arm90 pivoted on the stud 91. This double arm 90 is connected to the longlink designated 71l of the upper clutch. f

The apparatus for controlling the main lower clutch from opposite sidesof the printin pressand at different points along these si es utilizesapair of longitudinal rods 92, these being positioned adjacent the baseof the machine and slidable in guides 93. Positionedalong the sides ofthe press there are a series of hand levers 94 mounted on pivots 95secured to fixed brackets 96. These levers ferent sections of the rod92. This coupling is shown as having the slot tapered on one side asindicated at 101 (note particularly Figs. 1, 2 and 13, through 17).Therefore by the action of rocking the hand levers 94 in a directionlongitudinal of the press, the

rods 92 may be given a longitudinal sliding motion. I find itsatisfactory to use round steel tubing for lightness; these also havingsufficient stiffness to prevent any bending.

In order to transmit the motion from the rod 92 on the side remote fromthe main clutch, that is on the side remote from the stand 19 and alsofrom the side having the stand, the shaft 81 is conducted through ajournal 102, on the frame 11 and 103 on the opposite side of the press.On the side having the stand 19 there is a hub 104 clamped to theshaft81 and this has a depending arm 105 which carries rollers similar to therollers 98 operating in a vertical slot in a coupling similar to thecoupling 100 shown in detail in Figs. 15 and 16. Therefore when an ofthe hand levers 94 on the side of the mac ine having the stand areoperated they shift the.

rod 92 and hence transmit a rocking motion tothe shaft 81, therebyactuating the main clutch and the brake for the main shaft.

At the side yof the machine opposite the stand 19 there is a hand lever106 which has a hub 107 directly connected to the rock shaft 81.Therefore by operating this hand lever thefshaft 81 may be oscillatedand the main clutch operated. A downward extension 108 from the hub 107has rollers similar to the rollers 99 operating in a slot similar to theslot 101 and in the coupling .100 and thus when any of the hand levers94 distributed lengthwise of the printing press on the side opposite thestand is actuated it gives a rocking movement to the cross shaft 81,hence operating the main clutch.

The upper clutch may be operated from one osition on each side of thepress and this is Ve ected by conducting the rock shaft 87 throughjournals 109 and 110 in the main frame of the press and mounting of handlevers 86 and 111 on the opposite ends of the shaft 87. Therefore whensuch shaft is rocked by the levers 111 and 86, it operates the upperclutch and the upper brake.

v A drive motion is carried from the gear 25 through a large bevel gear112 meshing with a bevel pinion 113 carried by a longitudinal shaft 114which has a bevel gear 115 meshing with a bevel gear 116 on the gear 117meshing with the gear 118. These latter gears are utilized to drive thecutting and delivery section of printing press.

In order to selectively lubricate the bearings of either the upper orlower clutches,

These Y loo llU

lilo

I utilize the construction illustrated in Figs. 9 to 12 which may beconsidered asoperating in connection with Vthe shaft 22,..` 'I heshafthas a longitudinal bore 119 which'has a reciprocal grease tube 120mounted' therein.

surface of the shaft.-v rvIhe outer end of theY grease tubev 120 has acoupling 127 mounted thereon, preferably being screw. threaded.

Y This coupling has a iange 128 with grooves 1293 in its periphery?which` lgrooves are engaged by studs130 screwed into the endofthe shaftrand through a cap disc131, thiscap disc being illustrated as fittingover the hub 132 of oneqof the fly wheels. By fthisconstruction thecoupling 127 is forced to rotate with the shaft `and hence the greasetubealso rotates withthe shaft and cannot rotate relatively thereto.The; sleeve 131` mounted on the cap 131 is to protect the operators fromhavingV their wclothing caught in the rotating grease` cup. t

A grease cup133 is secured` tothe end of the coupling 127 and by pullingout on the greasey cup the coupling ymay be slid outwardly through thespace131 between the cap disc 131 and `,end of kfly wheel hub therebypulling the grease tubefi120 and shifting the port 135 to aregister withgreaseyduct 121V and the Vport 136 outl of register withl grease duct12,2.

In this positionrgrease maybe forced into the outer clutch bearingnearest the stand 19. In

a similar manner, when the greasevcupY is pushed upon to its 4innermostposition as` shown in Fi 51.19,' the grease port 136 will come toregister with-grease duct 122 and the-,port 135 will come out ofregisterwith duct 121 and make it possible to force grease into the i remotebearing of clutch.

The bleeder duct 126 serves as an escape for any grease that may collectbetween end rof the tube 120 wheny pulled out rand end of bore 119 whichwould hamper getting tube `120 back to its inner position.

. Various changes may be made in theprinvciples of from the spiritthereof as set forth Vin the description, drawings and claims. l

I claim:

' 1.v kA printing press having an upper and a lower deck, a main driveshaftV operated through a clutch from a source of power, a

main drive gear operated by said shaft, a gear train for each deck'meshing with the main transmission gear, one of said trains being diss`connectible therefrom and adapted to mesh with a secondary transmissiongear, a secondary drive shaft to operate the secondary transmissiongear, and means to drive the secondmy invention without departing ary*power shaft from the Asource of power through the medium of a secondaryclutch.

2. Aprinting press having an upper anda lower printing deck, va maindrive shaft hav- 1 ing a clutch connecting said shaft from the source ofpower, a main transmission gear adapted to drive both decks, means todiscon-V nect the gear. drive from one of the decks to the maintransmission gear, a secondary transmission gear to drive one [of thedecks when' said gear drive is disconnected frointhe main shaft.

3. A printing erated through a inain'clntch from a source of power, amain transmission gear driven by press having an upper and a lowerprinting deca, amain drive shaft op such shaft, atrain of gearsoperating the lower yand upper decks fromthe-maiii gear,

a secondary transmission gear, means to, shift the gear train Afortheupper deck fromthe main to the secondaryv transmission gear, ka

f secondary-power shaft drivingthe secondary gear and having a secondaryclutch thereon, means to drive the 3 secondary vpower, shaft through themain clutch and through the sec-v ondary clutch by a transmissionmechanism.k

4. A printing press having in combination an upper v and a lowerprinting deck, Aeach having two printing units, a main drive shafthavinga main clutch driven from a source of power, a main transmissiongear driven by the'main shaft, gear trains operating'from the maintransmission gear to drive the unitsof the lower and upper presses, saidgear train forthe upper units beingdisconne-ctible from' Athe maintransmission and connectible tot a driven by the source of power to arotating element of the secondary clutch,said clutches being engageableand disconnectible with the main and secondary drive shafts.AVV

5; A'printing press comprisingin combination a plurality of printingdecks, means to drive both of said decks by power transmitted(` throughsa main clutch, or by power transmitted through a main and a secondaryclutch, said clutches ybeing 4operable independently one of thevother,whereby 'one rof the decks may be stopped and the other deckmaybe drivenor vice versa,y or both of the decks may bedriven through themainclutch, a clutc control r'o'dy extending longitudinally of thepressonopposite sides thereof, and means to connect such rod to the mainclutch from either sideof the press'to controlthe main clutch.

(i. A printing press comprising in combination a plurality of printingdecks, meanstoy drive both of said decks by power transmitted kthrough amainclutchforbyipowertransclutch, said clutches being operableindependently one of the other, whereby one of the decks may be stoppedand the other deck may be driven or vice versa, or both of the decks maybe driven throughV the main clutch, a pair of clutch operating rodsextending longitudinally on op osite sides of the press, said rods beingshi table longitudinally with means to operate the main clutch byeitherof said rods, and a shaft extending transverse- 1y of the press andhaving operating handles on opposite sides and a connection from saidshaft to the secondary clutch, whereby the secondary clutch may beoperated from a single position on opposite sides of the press.

7. A printing press having an upper and a lower printing deck, a maindrive shaft having a clutch connecting said shaft to a source of power,a secondary drive shaft having a clutch, a geared connection from themain shaft'to the lower deck, a geared connection from the secondarydrive shaft to the upper deck, a sprocket and chain connec tion betweenthe two shafts, said sprocket "Y, and chain connection beingdisconnectible and a geared connection from the lower to the upper deck.

8. A printing press having an upper and a lower printing deck, a. maindrive shaft operated through a main clutch from a source of power, amain transmission gear driven by such shaft, a geared connection fromthe main ear to the lower deck, a secondary gear train rom the main gearto the upper deck, an upper drive shaft having a clutch, and a gearedconnection to the upper deck through the secondary transmission gearsand a ydisconnectible sprocket and chain connection be` tween the twoshafts, said secondary gears being shiftabl'e to engage the main gear'or to be driven from the upper shaft.

9.V Ayprinting press having an upper and a lower printing deck, a maindrive shaft operated through aA clutch from a source of power, a pinionon said shaft meshing with the main transmission gear, a gearedconnection from the ina-in transmission gear to the lower deck, ashiftable geared connection from the main transmission gear to the upperdeck, an upper shaft having a clutch, a second pinion on said uppershaft, an idler gear driven by said second pinion, said idlery gearbeing adapted to actuate the shiftable transmission to the upper deck, adisengageable sprocket and chain connection between the gitudinally ofthe slot, said shiftable gearsv eing adapted to form a transmissionbetween a lower drive gear and an upper drive gear in accordance withthe position of the studin the slot. A f

y11. In a printing press having a press frame, a lower and an upperprinting deck, a main power shaft, a gear drive from the main power shaft to the lower deck, an upper shaft, a. sprocket and chain connection,a. central frame having a panel mounted therein, said frame having apair of slots with a segmental ring at the end of each slot, a studshiftable in each slot and having means to engage the segmental ring ofthe slot, the ring forming a limit of movement, a gear on each stud andmeans to drive the gears on the studs either from the lower shaft orfrom the upper shaft, the said gears on the studs driving the upperdeck.

l2. In a printing presshaving a. ress frame, a shaft extendinglongitudinally t ereof and having couplings therein, each couplinghaving a slot therethrough, a series of pivot-ally mounted levers eachhaving a roller engaging in a slot, whereby on rocking of any lever thesaid shaft may be shifted longitudinally.

13. A printing press having a main frame structure with rolls and gearsfor driving said rollsfmounted therein, a central frame in the mainframe, a panel secured the central frame, a stand positioned at one sideof the central frame, lower and upper shafts each having a clutchjournaled in the stand and in the panel, a geared connection from saidshafts to the gears operating the rolls, and a'y sprocket and chaindrive from the lower to the upper shaft.

In testimony whereof I have signed my name to this specification. p

C. A. RUPP.

izo

